#include<stdio.h>
int main (void)
{
	const int ROWS = 6;
	const int CHARS = 6;
	int row;
	char ch;

	for (row = 0; row < ROWS; row++)
	{
		for (ch = ('A'+ row); ch < ('A' + CHARS); ch++)
			printf("%c", ch);
		printf("\n");	
	}

	getchar();
	return 0;
}